#include <stdio.h>
#include <add.h>
#include <sub.h>



int main()
{
  int x = 10;
  int y = 20;
  int z1 = myadd(x , y);
  int z2 = mysub(x , y);
  printf ("myadd :: %d\n" , z1);
  printf ("mysub :: %d\n" , z2);
  return 0;
}
